adjustments to the installer and updater to ensure

`lsof` is installed

scripts/update_birdnet.sh

@@ -11,10 +11,4 @@ sudo -u${USER} git -C $my_dir pull -f
 sudo systemctl daemon-reload
 sudo -u${USER} git -C $my_dir stash pop
 sudo ln -sf $my_dir/* /usr/local/bin/
-if ! grep python3 <(head -n1 $my_dir/analyze.py);then
-  echo "Ensure all python scripts use the virtual environment"
-  sed -si "1 i\\#\!$HOME/BirdNET-Pi/birdnet/bin/python3" $my_dir/*.py
-fi
-if ! grep PRIVACY_MODE /etc/birdnet/birdnet.conf;then
-  sudo -u${USER} echo "PRIVACY_MODE=off" >> /etc/birdnet/birdnet.conf
-fi
+sudo $my_dir/update_birdnet_snippets.sh